Hi, update: Elina, I rewrote the sketch using the aliases of the analog pins. It may be possible that the Arduino guys changed the way analogWrite() deals with pin numbers since I wrote the sketch. Checked again and again: the configuration worked properly. You can also confirm that the sensor is wo...

Hi Paul, thanks for your quick reply. I've already tested the other pins with the previous code and they worked fine: 0 on A5 and 1023 on A4. I'm currently testing the code you wrote: the values from A3 have been increasing for few minutes and at the moment they are remaining almost constant around ...

Hi Paul, could you please with the issue about the AMBI sensor that I've posted here: http://arduino.cc/forum/index.php/topic,133522.0.html I think that it's an electrical issue but can't understand how to behave. thanks Elina cinch123, The sensor outputs its value as a current source, and we have a...